Original Pyrotenax® supplier
conductor & sheath
Certified fire rated cable
Pyro MI Fire Survival Cable System
This provides the ideal solution to many difficult and demanding wiring installations making a permanent and dependable wiring cable system for all low and medium voltage applications. Safe in hazardous installations and radioactive environments. Exceeds all worldwide fire performance standards. The Pyro MI Cable System is the natural choice for domestic, commercial and industrial applications.
Pyro MI, tired, tested and approved worldwide.
Pyro MI Cable Systems were installed when fire broke out in the Channel Tunnel in November 1996. Resisting extreme temperatures that destroyed concrete and welded rails, the Pyro MI Wiring Cable allowed emergency lighting to operate for the safe evacuation of passengers; proving its superior fire survival capability.
Pyro MI range
The standard range of Pyro MI Cable provides the ideal solution for almost all electrical circuits in the low voltage category.
Two voltage grades - 500 and 750 Volts, are available with conductors from 1.0 mm² to 240 mm².
A full range of complementary accessories and tools provides a complete wiring system supplied and supported by the “Genuine Pyrotenax” component assurance.
Pyro MI construction advantages
High Operating Temperatures
Inherent Flameproof Barrier
Great Mechanical Strength
Small Overall Diameter
Wiring Cable and Conduit Combined
Competitive Installed Cost
High Degree of Electrical Screening
Integral Earth Continuity
High Corrosion Resistance
Pyro MI benefits
Pyro MI construction
Pyro MI survives the fire test requirements for enhanced grade cables as defined in BS 5839: part 1.
Peace of mind from the third party (LPCB) approval for categories C, W and Z in BS 6387.
Also attains categories C, W and Z of BS 6387 with one single cable sample.
With a basic inorganic construction of a copper sheath and conductors, together with a mineral insulant, the cable provides a unique combination of dependability, versatility and permanence.
This construction, with the melting points of 1083°C and 2800°C for the copper and the insulant respectively, provides the unsurpassed Fire Survival properties which enable the cable to continue to carry current at temperatures in excess of 1000°C.
Industries and applications
Building Services offshore
Dock and Harbour
Petrol Stations Petrochemicals
Standards & approvals
Pyrotenax MI Wiring Cables are manufactured, tested in accordance with, and LPCB approved to, BS EN 60702-1.
Pyrotenax MI Wiring Cables are LPCB approved to BS 8434-2, BS 5839-1
Clause 26.2 (Enhanced), BS EN 50267-1, and BS EN 50200 Class PH 120.
Pyrotenax Mi wiring cables have also been witnessed tested, by Lloyds
Register, to the test requirements of BS7346-6.
LPCB Cert No. 063
Pyrotenax Terminations are tested in accordance with BS EN 60702: Part 2. Pyrotenax Terminations are Certified for use in potentially explosive atmospheres. Glands - Baseefa08ATEX0327X and
IECEx BAS 08.0107X Increased Safety Seals - Baseefa02ATEX0194U
Pyrotenax cable drums, reels and termination packaging are
marked with the CE mark as required by the low voltage directive, except for Terminations primarily intended for installation in potentially explosive atmospheres which are not marked, because the directive does not apply.
Other Standards and Codes of Practice Referring to Mi Cables:
BS 8434 - Methods of test for assessment of the fire integrity of electric cables Part1: Test for unprotected small cables for use in emergency circuits - BS EN 50200 with the addition of water spray. Part 2: Test for unprotected small cables for use in emergency circuits - BS EN 50200 with a 930°C flame and with water spray.
BS 6387 - 1994 Performance Requirements for Cables Required to Maintain Circuit Integrity under Fire Conditions
EC 60331 - Tests for Electric Cables under fire conditions.
Underwriters Laboratories - UL2196-USA, ULC-S139-Canada.
Tests for fire resistant cables.
London underground - Fire Survival Cable (MICC) EME-SP-14-028-A1.
BS En 60702-1 & 60702-2 - Mineral Insulated Cables and their Terminations.
BS 7671 - Requirements for Electrical Installations (IEE Wiring Regulations).
BS 5588 - Fire Precautions in the design, construction and use of buildings,
BS 5266 - Emergency Lighting.
BS 60079 - Code of Practice for the selection, installation and
maintenance of electrical apparatus for use in Potentially Explosive Atmospheres.
BS 5454 - Storage and exhibition of Archival Documents.
BS 5839 - Fire detection and alarm systems in Buildings.
The Institute of Petroleum Guidance for the design, Construction, Modification and Maintenance of Petrol Filling Stations. Electrical Installations.
C.I.O. Lighting and Wiring of Churches.
Fire Performance BS 6387 Performance Requirements for Cables Required to Maintain Circuit integrity under Fire Conditions.
This standard details the following tests to categorise cables according to their fire withstand capabilities.
Resistance to Fire 950°C for 3 hours - Category C
Resistance to Fire with Water Spray 650°C - Category W
Resistance to Fire with Mechanical Shock 950°C Category Z